Home / 8,781.92-13,173.75-3,785.96

Finding the Fourth Proportional to 8,781.92, 13,173.75 and 3,785.96

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Solution

The fourth proportional to 8,781.92, 13,173.75 and 3,785.96 is: 5,679.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.92 : 13,173.75 = 3,785.96 : x
  2. Step 2: Convert to fraction form
    8,781.92/13,173.75 = 3,785.96/x
  3. Step 3: Cross multiply
    8,781.92x = 13,173.75 × 3,785.96
  4. Step 4: Simplify right side
    8,781.92x = 49,875,290.55
  5. Step 5: Solve for x
    x = 49,875,290.55/8,781.92
  6. Step 6: Final answer
    x = 5,679.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.